SAML Could not find private key file [[dataroot]/saml2/[dataroot]/saml2/localhost.pem],

by Ambrish Tiwari.  

I have configured the SAML2.0 in Moodle 2.9, I have also got the  .cert & .per files generated, but when I am trying to View SP Metadata I am getting below error. Can anyone please tell me where is can find the dataroot/saml/dataroot/saml2 path.